Electric-motor support.



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No. 820,092. PATBNTED-AUG. 7, 1900. J. G. CRAWFORD.

ELECTRIC MOTOR'SUPPORT. APPLICATION FILED JAN. z, 1904. RENEWED SEPT. 1a, 1905.

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- y@ MWI@ Q0 .N-o. 828,092. PATENTED AUG. 7, 1906.

JRC. CRAWFORD.' ELECTRIC MOTOR SUPPORT.

APPLICATION FILED JAN. 2, 1904. RBNEWBD SEPT. 18, 1906.

' 3 SHEETS-SHEET 3.

UNITED sTATEs ELECTRIC COMPANY', OF CHIC ILLINOIS.

JOHN G. CRAWFORD, OF LA GRANGE,

ILLINOIS, As'sIGNOR To wEsTERN Aeo, ILLINOIS, A CORPORATION. OF

. ELECTRIC-MOTOR SOPPORT.

, specification of Lettersratent.'

Patented Aug. 7, 1906.

Application filednnmy 2, 1904. vRenewed september 1s, .1905. seria No. 278,947.

support, and more particularly to a support for motors of the -type which are ,used to drive sewing-machines.

My objectis in general tolprovide a construction by which the motor may be readily adjusted in operative relation to the wheel of the sewing-machine, and more particularly to permit the motoI` to be tilted back outof the way when it is desired to get'at the mech7v anis'm of the sewingmachine,-as for oiling, or

y lines.

shown.

where the machine is arranged to be let down below the table. l

I will describe my invention by reference to the accompanying drawings, in Which- Figure l 'is a view in elevation of a motor j a dportion of supported according to my plan, the sewing-machine being indicate in dotted Fig. 2 is a similar view showing the motor A tilted up to an alternate position. F ig. 3 is a plan view of the motor and support. Fig. 4 is-a detail sectionalview on line 4 4 of Fig. 3, showing a portion of the bracket carrying the arm upon which the motor is mounted. Fig. 5 is a detail sectional view of said bracket on line 5 5'of Fig, 3.1 Fig. 6 is a perspective view of a sewing-machine, showing a motor applied thereto; and Fi 7 is another view showing the motor tilte so that the sewing-machine can be let down into the bed below the table.

The same letters f reference are used to designate the samel parts wherever they are The motor a, is of a well-known type and carries a friction-disk c', which is adapted to engage with thehand-wheel of the sewingmachine to drive the same. The motor is so mounted upon the end of the supporting- I arm b that it can be turned slightly on a vertical axis, as shown in dotted to regulate Vthe speed of the sewing-machine, aspiring in the base ofthe motor-frame serv- Ing to return the motor to its normal posivmotor bodilyrom the table.

lines in Fig. 3,

tion. This feature is well known in the art l and will not be particularly described.

The supporting-arm b, which carries the motor at one end, is hinged at the other end to the table'or, rather, to the bed-plate or bracket c, fastened to the table, so that the motor may be tilted from the operative posi-A tion shown in Fig. l to the position shown in Figs. 2 and 7, so as to permit the oiling or other manipulation of the sewing-machine withoutl makingit necessary' to detach the This feature Al believe to be novel with `'me and have found it of very great value, since itmakes the practical application o electric motorsl to sewingmachines a very simple matter. The ordinary user of a'seWing-machine is not competent to detach the motor every time it is desired to oilthe machine or sink it into the 'bed of the table and then attach the motor again whenever it is desired to use the Inachine, making the nice adjustment which the friction driving-gear. necessitates.

The mechanical features of themotor-support shown in the drawings are also very ad-f vantageous. .The tilting arm b, which carries the motor,'is journaledaat one end-b to an arbor d, which is mounted between two lugs d d*upon the stationary bed-plate or bracket c. .This arbor dis' arrangedto be adjusted in a direction transverse to its axis said screws passing freely throu h said lugs, but being tapped into and, indee said arbor. By manipulating these screws it will be apparent that a very ,accurate adjust'- ment of the friction drivin -disk With relation to the hand-wheel 'of t e machine may be secured. The portion of the arm b which is journaledupon the `arbor d is kept from being displaced -longitudinally upon t e arbor b screws 7L h, mounted in the lugs d d and a utting against the ends of the collar or journal carried bythe arm b. An adjustment of the Iarm lengthwise of the arbor is possible by manipulating the screws h h in an obvious manner. f

A further means of adjustment which I -by means of the screws ff in the lugs d d',

,supporting IOT have provided consists of an adjustable leg which is formed by a screw g, mountednear the end of the tilting arm b. .By raising or lowering this screwa vertical adjustment of table,

the driving-disk with relation to the handwheel of the machine may be secured.

Having thus described my invention, I

claim as new and desire to secure by Letters Patent# 1. The combination with a sewing-machine table having a machine movably mounted motor out of the path ofthe machine; whereby the machine may be conveniently oiled and `manipulated without de taching the motor from the table or interfering with its adjustment. Y

2.The combination with a sewing-machine table and the machine mountedI on said table, of an `electric' motor having' a friction-wheel adapted to drive the hand-wheel of the machine, a supporting-arm' carrying the motor at one' end land hingedl at the other end to the andan adjustable leg for sai'd supporting-arm', whereby the liri'ction"-vvlreel oi' the motor may be vertically adjusted with relation` to the chine. j l

3. IThe combination with the bed'fplatel or bracket c having lugs' d il', of an arbor d eX- tendin between said lu throng said lugs and ar' or, whereby the po- 4 sition of the arbor may be adjusted, a sup'- arbor, whereby the moto-r may be tiltedupon portingarm b' carrying aI motor at one end and journaled at the other end upon said hand-wheel of the sewing-ma-` s, screws f f passing the arbor as an axis, and a screw carried by said supporting-arm and forming an adjustable leg for the same.

4. The combination with a sewin -machine tablexhaving a-'machinelmounted t ereon, of a motor having a Jfriction-disk adapted to drive the hand-wheel of the machine, and a sup orting-arm for said Ymotor hinged. to the ta e and normally maintaining the motor in Vposition such that said disk engages said hand-wheel, said arm being adapted to be swung to .carry the-motor away from themachine' and break the'engagemen't of said disk with said wheel; whereb the machine may be conveniently oiled an mani uleted' with out detaching the motor from t e table or in terfering withits adjustment.

5. The combination with asewing-machine tabl'e having a machine movabl mounted thereon, of a motor having a friction-disk adapted to drive the hand'swheel of the-mw chine, and, an arm upon which said motor is mounted in position toV operate said machine, said arm extending approximately parallelI to the table away from the machine and bein hinged to said tabl-e, said arm being evd-a 'te i to be moved tol carry thel motor away omsaid machine; wher'eb the machine mag be conveniently oiled an manipulated wie 1 out detach-ing the motor from .the table or miser'd fering with its adjustment. In witness whereof l hereunto' subscribe' my name this IOth dav of June, A. l). 9631.

- JOHN Gr. CRWFRD. Witnesses:

. J. P. CnAcRAr'r EDWIN SMYTHE. 

